text: 
  #ifndef OLED_FONT_H
  #define OLED_FONT_H
  #include "spark_wiring.h"
  
  typedef struct {
      int id;
      int width;
      int height;
      byte startChar;
      int totalChars;
      const byte *data;
  } font_t;
  
  font_t* parseFont(const byte *fontData);
  
  #endif // OLED_FONT_H